WebUI: add global "locale" key to loadTimeData in many cases

ui/base/webui/web_ui_util_unittest.cc

Index: ui/base/webui/web_ui_util_unittest.cc
diff --git a/ui/base/webui/web_ui_util_unittest.cc b/ui/base/webui/web_ui_util_unittest.cc
index 792895c9b243ea83be29eb10cbc9c43667090a13..90832f1f48ea447a2dbb755383d343815685cf3a 100644
--- a/ui/base/webui/web_ui_util_unittest.cc
+++ b/ui/base/webui/web_ui_util_unittest.cc
@@ -4,6 +4,7 @@
 
 #include "ui/base/webui/web_ui_util.h"
 
+#include "base/values.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "url/gurl.h"
 
@@ -52,3 +53,16 @@ TEST(WebUIUtilTest, ParsePathAndScale) {
   EXPECT_EQ("random/username/and/more", path);
   EXPECT_EQ(1.3f, factor);
 }
+
+TEST(WebUIUtilTest, LanguageAndLocale) {
+  base::DictionaryValue defaults;
+  webui::SetLoadTimeDataDefaults("fr-CA", &defaults);
+
+  std::string language;
+  ASSERT_TRUE(defaults.GetString("language", &language));
+  EXPECT_STREQ("fr", language.c_str());
+
+  std::string locale;
+  ASSERT_TRUE(defaults.GetString("locale", &locale));
+  EXPECT_STREQ("fr-CA", locale.c_str());
+}